Title

The Download unsigned ActiveX controls property is not set properly for the Restricted Sites Zone. (Cat II impact)

Discussion

ActiveX controls can contain potentially malicious code and must only be allowed to be downloaded from trusted sites and they must be digitally signed.

Check Content

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> "Download unsigned ActiveX controls" will be set to “Enabled” and "Disable". Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4 Criteria: If the value 1004 is REG_DWORD = 3 (Disabled = 3), this is not a finding.

Fix Text

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> "Download unsigned ActiveX controls" will be set to “Enabled” and "Disable". Change the registry key HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4 Criteria: Set the value 1004 to REG_DWORD = 3 (Disabled = 3).

Additional Identifiers

Rule ID:

Vulnerability ID: V-6290

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.